# From http://sourceforge.net/projects/libpng/files/libpng16/1.6.20/
md5	3968acb7c66ef81a9dab867f35d0eb4b	libpng-1.6.20.tar.xz
sha1	c4f02051e0b86613076ce390fd15824f3506a148	libpng-1.6.20.tar.xz
